Analysis

  • max time kernel
    117s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    20-10-2021 06:37

General

  • Target

    Scan_Order_Specification_DHL.exe

  • Size

    582KB

  • MD5

    ac6d0bab372285ad89d7c334032fc809

  • SHA1

    433c304e4a46852934178f6338ab8a34523b6d0e

  • SHA256

    38aeafd284cbe435d1c9c5983ed056c010a6381e7ba180a68ebeba5845760511

  • SHA512

    ad61335dc9ffe4d9d495def671a5d4d400263bd8258cb3fa311a91e92e6af14e27322562afee70c552d9e3a2187bb9552b3026f6b657c0f8ba114a5a9215ceff

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.symmdentaesthetics.com/
  • Port:
    21
  • Username:
    [email protected]/
  • Password:
    smartooo@12

  • Protocol:
    ftp
  • Host:
    ftp://ftp.symmdentaesthetics.com/
  • Port:
    21
  • Username:
    [email protected]/
  • Password:
    smartooo@12

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • AgentTesla Payload 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nghmBJNrTlg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB3D5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:596
    • C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe
      "C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe"
      2⤵
        PID:1028
      • C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe
        "C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe"
        2⤵
          PID:1004
        • C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe
          "C:\Users\Admin\AppData\Local\Temp\Scan_Order_Specification_DHL.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:556

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/556-64-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/556-65-0x0000000000447D8E-mapping.dmp
      • memory/556-70-0x00000000005D1000-0x00000000005D2000-memory.dmp
        Filesize

        4KB

      • memory/556-69-0x00000000005D0000-0x00000000005D1000-memory.dmp
        Filesize

        4KB

      • memory/556-68-0x0000000075B11000-0x0000000075B13000-memory.dmp
        Filesize

        8KB

      • memory/556-60-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/556-66-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/556-63-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/556-61-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/556-62-0x0000000000400000-0x000000000044C000-memory.dmp
        Filesize

        304KB

      • memory/596-59-0x0000000000000000-mapping.dmp
      • memory/2040-54-0x0000000000210000-0x0000000000211000-memory.dmp
        Filesize

        4KB

      • memory/2040-56-0x0000000004AC0000-0x0000000004AC1000-memory.dmp
        Filesize

        4KB

      • memory/2040-58-0x0000000007EB0000-0x0000000007F19000-memory.dmp
        Filesize

        420KB

      • memory/2040-57-0x00000000002F0000-0x00000000002F7000-memory.dmp
        Filesize

        28KB